EOS vulnerability

On affected platforms running Arista EOS, the global common encryption key configuration may be logged in clear text, in local or remote accounting logs. Knowledge of both the encryption key and protocol specific encrypted secrets from the device running-config could then be used to obtain protocol specific passwords in cases where symmetric passwords are required between devices with neighbor protocol relationships.

Published 25 Aug 2025Updated 12 Oct 20261 sources
CVSS 3.8

What happened

On affected platforms running Arista EOS, the global common encryption key configuration may be logged in clear text, in local or remote accounting logs. Knowledge of both the encryption key and protocol specific encrypted secrets from the device running-config could then be used to obtain protocol specific passwords in cases where symmetric passwords are required between devices with neighbor protocol relationships.

Affected versions

EOS: 4.34.0F (custom); 4.33.0 through 4.33.3F (custom); 4.32.0 through 4.32.5M (custom); 4.31.0 through 4.31.7M (custom); 4.30.0 through 4.30.10M (custom); 4.29.0 through 4.29.10M (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.